Wheels Manufacturing PF30 Outboard Thread Together Bottom Bracket with ABEC-3 Bearings for 22/24 mm Crank Spindles

Designed for 22/24 mm diameter SRAM/Truvativ GXP spindles, this upgraded Wheels Manufacturer PF30 Outboard Thread Together bottom bracket delivers increased durability and bearing longevity.Compatible with PF30 and Specialized Carbon OSBB bottom bracket/frame interfaces and 22/24 mm diameter SRAM/Truvativ GXP crank spindlesSpecialized Carbon OSBB frames with a 61 mm shell width may need additional cup spacers (not included)Fits frames with 61 to 73 mm shell widths; 46 mm shell internal diameterSpecifically designed to install compatible spindles in compatible frames without adaptersMachined aluminum cups with replaceable bearings offer increased durability and longer bearing lifeEnduro ABEC-3 sealed, grade 10 chromium-steel ball bearings provide smooth, long-lasting operation52100 high-carbon chromium alloy races are extremely tough and durable for a long lifeIncludes two 0.5 mm and two 1 mm crank spindle spacers; two 46 x 1 mm and one 46 x 2.5 mm cup spacers; 1 wave washer and 2 Enduro silicone dust sealsBottom bracket cups produced after July 2018 do not use O-rings